Has anyone used the sgi-5e universal controller from Dakota digital to get the corrected vss signal for transmission and Speedo in an 01-03 ranger 5.0 with 4r70w? How did you wire it up and how well did it work? Thanks

 

I have a Dakota Digital SGI-5C calibrator on my 02 Ranger. The way I hooked it up should be able to be used with any engine or transmission. I tied into the wire that sends the signal to the speedometer. I took out the instrument cluster and tied in right behind the speedometer. I don't recall for sure which wire it was but I think it was black or dark green.
I switch calibraton back and forth depending on if I am using 31" or 33" tires. It has worked well for me but on my last off-road trip I discovered when I use the mic on my CB it affects the speedometer. I have never noticed that before. I think it has something to do with where I attached the ground wire on the chassis for the Dakota Digital unit. I am going to run the ground wire directly to the battery to see if that works better.

 

Awesome. I know I need to tie inputs from rwabs sensor to inputs and the grey and black to output. How to you adjust it for the tire size. I have 37s.

 

Mine can be adjusted two ways. It can be calibrated while driving or preset by calculating the error. Either way you need a means to measure your speed. I used GPS. I used the preset method and adjusted until it came within 0.5% error at 70 mph. The odometer is within 0.3% error.
At less than 60 mph the speedometer error gets greater but that is not the fault of the Dakota Digital unit. It is the Ranger speedometer at fault. It also did this before I installed the Dakota Digital unit.
You should have instructions as to how to calibrate the speedometer. Mine does not have a way to program the SGI-5C by tire size. I calculated the percent change due to the tire size and differential gears and used their chart to program. I then went for a drive to determine if I had to make any changes. I did and reprogrammed to dialed it in. I now have the settings recorded for when I switch the tires back and forth.

 

Awesome. I'll be ordering one Monday. Hopefully it will fix my issues.

 

Instead of trying to calculate all the percent changes, it may be easier to go for a drive with a GPS or other device to determine how far off you speedometer is. From there you can figure out the correction and look at the chart that should come with the SGI-5E unit and program it for that correction factor. Take it for a drive again to see if you need to correct it again. If you have somebody with you, the correction should be able to be made while you are driving.

 

As long as it gives me a signal to allow transmission to shift I'll be happy. The calibration for tires and gears will just be extra lol. Without the vss my trans has been in limp mode

 

The Dakota Digital does not generate a signal. It modifies the signal to calibrate. You need VSS input to get an output signal from the Dakota Digital unit. It sounds like from your previous posts that you already know that but I just wanted to make sure.

 

Yes sir. I have the tone ring on the back. Its just where my ranger sent the signal straight to the pcm. The explorer 5.0 sends it to the 4wabs module that conditions it from the sine or square wave to the 8000ppm signal then to the speedometer, pcm etc.. I just need it to convert that signal to a useable signal for pcm bc I have a solid axle in front and as far as I know don't use abs anymore

 

You may have to look into it more than I had to. I know the instructions said to pick up the signal after the 4wabs to avoid interfering with the abs module. I don't know where you would pick up the signal for the PCM. I am pretty sure where I tied in was only correcting the speedometer. I have a manual transmission so I control the shift points and the PCM does not need speed input.

 

I talked to a guy on explorer forum. He said I just tired into the two wire tone ring and the output was the grey black wire going to pin 42 on main harness.